Industry Standards Promote Security Cables into the Standardization Era

Industry Standards Promote Security Cables into the Standardization Era The importance of the security business is self-evident, but the security industry has always lacked standardized management. In mid-October of 2012, Li Jianping, deputy secretary-general of the China Association for Security and Cooperation, and executive deputy director of the expert committee, said to the industry that the security cable will enter the standardization era and is currently working on the drafting of the "Security cable industry standard project report" and will strive for an early date. carry out.

Wire and cable products, as the most important transmission medium, play an indispensable role in the data, video and audio transmission and power connection of security systems. Their importance is similar to that of the human body. It directly affects and determines the integrity of security systems. With overall effectiveness. According to incomplete statistics, in 2011, the output value of domestic wire and cable products for security has reached 4 billion yuan, ranking the top 5 in the equipment market for security systems. After decades of development, the industry has formed Shanghai and Tianjin. High quality security cable production base represented by several companies.

Due to the current domestic security industry market management, corporate self-discipline, security cable product standardization work lags behind and other reasons, the security cable market there is a chaotic and disorderly situation, security cable product quality varies, unqualified products occupy the market A certain share of some cable manufacturers use recycled materials, resulting in product life can not meet the design requirements of the security system, security cable products jerking, a small amount of shortage of ubiquitous. In recent years, security system quality accidents caused by cable products have occurred from time to time, resulting in certain economic losses and adverse social impacts. Cables have become a “product short board” of security systems and have become a major hidden danger in security systems. People from both inside and outside the industry have called for the need to change the security and security of the cable as soon as possible.

In recent months, the China Security Products Industry Association, the National Security Standards Committee, the National Security Inspection Center, and some security cable manufacturers have held three “Conferences on the Standardization of Wire and Cable Products for Security Use”. At the meeting held in Shanghai, a drafting group for the report on the cable industry standard for security was formally established, and Shanghai Aipu Wharton Electronic Industry Co., Ltd. was selected as the leader of the report drafting team. Two companies such as Tianjin 609 Cable Company were The deputy leader units, Guangzhou Yuhong, Jiangsu Tiancheng and other companies are members. At present, relevant research and drafting work is actively underway.

We believe that through the effective management of the government and industry authorities and through the joint efforts of industry and foreign companies, the security cable will usher in the era of standardization, users and enterprises will have standards to comply with, and reduce and control the overall use of product quality risks, promote The healthy development of the industry.

Clear Plastic Injection Molding parts usually made in PC, POM, PMMC, AS, PET, these clear plastic kits used widely in different application, such as auto light, medical devices, cosmetic packing, food container, water tank etc.

Comparing with other colored parts, strict requirements for appearance is a must for transparent Plastic Parts, which makes the injection molding processing more complex.  Mold Design  and injection molding condition are all determined factors to the final result, there are a few problems happen frequently in clear Plastic Molding process, we provide some solutions as below.

Silver streak: during the filling and cool-down process, the internal stress generated in the vertical direction and the orientation of resin flow occurs, while non-current orientation flow and orientation flow have different refractive index flash silk pattern, After its expansion, the clear plastic parts may be weak in strength.

Annealing is one of the options, for example, plastics in pc material can be heated to above 160 ℃ for 3 to 5 minutes, and then the natural cooling. As the silver streak is mainly because of the wet resin, so make sure the resin is dry before processing.

Air bubble: during injection molding process, the water and air in the resin are trapped inside the cavity or because of un-sufficient filling, excessive cooling cause a "vacuum bubble".

There are below methods to solve it:

  • Dry up the clear plastic raw material before pouring them into the barrel, the water and air contained would be massively reduced.
  • Slow down the filling process, leave it a little more time to allow the air escape.

Surface gloss defects: the possible reason is mold surface itself is not polished well, or the resin cooled down too fast so the resin are not actually in molded state, in this case, the injection molding temperature and ejection pressure need to be adjusted higher, cooling time need last longer.

Flow marks: the reason is because the melt viscosity is too large, the advanced melt flow has been condensed in the cavity, then coming melt flow after the condensation surface, leaving the surface with flow marks. 

Solutions: optimize the melt flow, increase molding and mold temperature, ejection pressure, add vents, and use lubrication as less as possible.

Clear plastics production sometime could cause the producer a big loss because of the high appearance requirement, the re-grinded materials is not possible to be used again, any slight contamination of raw materials could cause whole batch of molded parts failure, mold making is required to be in a good condition.

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